It's a second medal for hosts the National Yacht Club, who have been staging the 324-boat championship all this week. Minutes earlier this afternoon Annalise Murphy sailed to a European title in the women's Laser Radial division.
As for Lynch, only this morning The Irish Times was favouring his chances in the gold fleet after fellow Irish sailor Fionn Lyden slipped down the leaderboard.
The 17-year-old from Bennekerry, Co Carlow sailed consistently throughout the 12 regatta races with nine top-five finishes, including two race wins.
The Carlow Laser racer was our sailor of the month for July last year and it looks like there's no stopping the youngster's progress.